In august 2011, the first professional sister-in-law service centre in zhangchu was registered with the business administration. It is the only domestic business in the zhuo region that has registered as a professional sister-in-law. The first sister-in-law has won a great deal of feedback from many clients on the basis of the advanced concept of service, the regulatory model, and a keen and thoughtful sense of service. Since its establishment, the centre has been actively involved in activities of public interest and has been obliged to disseminate scientific mother-to-child care knowledge, which in a short period of time has become the brand of a very popular professional sister-in-law. The first sister-in-law adheres to the concept of "scientific guidance, quality of service". She is responsible for staff management, quality monitoring and regular client visits. Every middle-aged sister-in-law holds a nursery certificate, all of them a training certificate and a health certificat...